Royalty Obligation and Deferred License Fees (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	10 years
Amortization of deferred license fees [Abstract]
2014	$ 111,000
2015	111,000
2016	111,000
2017	111,000
Thereafter	111,833
Total	555,833
Prepaid expenses in other current assets	111,000
Deferred license and consulting fees in noncurrent assts	444,833
WARF [Member]
Finite-Lived Intangible Assets [Line Items]
License agreement amount	225,000
Amended license agreement amount	295,000
Licensing fees paid	225,000
Common shares issued, market value	70,000
Remaining cash license fee amount	215,000
Fees for filing prosecuting and maintaining patent protection	20,000
Annual license maintenance fee	25,000
WARF [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	2.00%
WARF [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	4.00%
Advanced Cell Technology, Inc. [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	20 years
Royalty rate on sale of products and services (in hundredths)	8.00%
Licensing fees paid	250,000
Maximum royalty payments	1,000,000
Advanced Cell Technology Inc, with Kirin Sublicense I [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful life	20 years
Royalty rate on sale of products and services (in hundredths)	5.00%
Licensing fees paid	200,000
Maximum royalty payments	600,000
Fees for sublicense (in hundredths)	20.00%
Advanced Cell Technology Inc., with Kirin Sublicense II [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	3.50%
Licensing fees paid	50,000
Fees for sublicense (in hundredths)	20.00%
Annual minimum royalty due	50,000
Reproductive Genetics Institute [Member]
Finite-Lived Intangible Assets [Line Items]
Common shares issued, market value	50,000
Common shares issued (in shares)	32,259
Sanford-Burnham Medical Research Institute [Member]
Finite-Lived Intangible Assets [Line Items]
Fees for sublicense (in hundredths)	20.00%
Reduction in royalties payable, percentage (in hundredths)	50.00%
Portion of fees for filing, prosecuting, and maintaining patent protection to be reimbursed by subsidiary (in hundredths)	25.00%
Sanford-Burnham Medical Research Institute [Member] | Pharmaceutical Products [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	4.00%
Sanford-Burnham Medical Research Institute [Member] | Research Use Products [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	10.00%
Hadasit Medical Research Services and Development Ltd [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	5.00%
Annual minimum royalty due	100,000
Payment for patent expense	249,058
Payment to licensor upon exercise of option to license (in hundredths)	30.00%
Hadasit Medical Research Services and Development Ltd [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Fees for sublicense (in hundredths)	10.00%
Hadasit Medical Research Services and Development Ltd [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Fees for sublicense (in hundredths)	30.00%
Hadasit Medical Research Services and Development Ltd (Clinical trial phase I) [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for attaining milestone	250,000
Hadasit Medical Research Services and Development Ltd (Clinical trial phase II) [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for attaining milestone	250,000
Hadasit Medical Research Services and Development Ltd (Clinical trial phase III) [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for attaining milestone	1,000,000
University of Utah License [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	3.00%
Fees for sublicense (in hundredths)	30.00%
Payments for attaining milestone	5,000
Minimum royalty amount in 2014	2,500
Minimum royalty amount in 2015 and thereafter	30,000
Number of licensed patents issued that trigger payments to licensor	5
University of Utah License [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for attaining milestone	2,500
Number of other licensees that triggers reduction in payments for attaining milestone	2
University of Utah License, Milestone I [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for attaining milestone	225,000
Sponsored Research Agreement with Weill Cornell Medical College [Member]
Finite-Lived Intangible Assets [Line Items]
Research period	3 years
Asterias License from the University of California [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	1.00%
Annual minimum royalty due	5,000
Maximum reduction in royality payments (in hundredths)	50.00%
Period of notice for termination of the agreement	60 days
Asterias Sublicenes from Geron [Member]
Finite-Lived Intangible Assets [Line Items]
Royalty rate on sale of products and services (in hundredths)	1.00%
Licensing fees paid	65,000
Annual license maintenance fee	$ 10,000
Period of notice for termination of the agreement	90 days